Comprehensive modeling and simulation of grid-tied PV system

Abstract

In this work, three-phase single stage grid-connected photovoltaic system using current control inverter is simulated using Matlab/Simulink. To deal with varying irradiance conditions, the incremental conductance MPPT has been used, however in order to improve the power quality a three-level (NPC) inverter based SVM control together with LCL filter has been used. The main result of the project is that power has been injected to the grid while the power factor is forced to be unity and the current's THD is kept below the level required by the international standards